Theme             Learning about the environment

Basic science    J.S.S.2   First Term

WEEK 9

Chemicals 2

Performance Objectives                        

The student should be able to:

1. Define chemicals

2. Classify chemicals based on their usage.

Content

Chemicals

A chemical is any substance consisting of matter. This includes any liquid, solid, or gas. A chemical is any pure substance (an element) or any mixture (a solution, compound, or gas). They can either occur naturally or can be created artificially.

Examples of Naturally-Occurring Chemicals

Naturally-occurring chemicals can be solid, liquid, or gas. Naturally occurring solids, liquids, or gases may be made up of individual elements.... View More